18234969016 has 32 divisors (see below), whose sum is σ = 37312844400. Its totient is φ = 8285501440.

The previous prime is 18234968923. The next prime is 18234969019. The reversal of 18234969016 is 61096943281.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18234969019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204630 + ... + 279898.

Almost surely, 2^18234969016 is an apocalyptic number.

It is an amenable number.

18234969016 is an abundant number, since it is smaller than the sum of its proper divisors (19077875384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18234969016 is a wasteful number, since it uses less digits than its factorization.

18234969016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78039 (or 78035 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 18234969016 in words is "eighteen billion, two hundred thirty-four million, nine hundred sixty-nine thousand, sixteen".